Rotary engine.



C. P. RHOY.

ROTARY ENGINE.

APPLIOATION FILED DEC. 2. 1904.

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f ijfi 1G jfi fiail Z1 Z] s 20 20 Witnesses Inventor.

/ I b I Attorneys No. 784,179 PATENTED MAIL 7, 1905.

G. P. RHOY. ROTARY ENGINE.

. APPIJIOATIDN FILED DEC. 2, 1904.

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26 m 26 4 27 2 g n X 28 :2 Etneses v Inventor I M" Httomegs Patented March '7, 1905.

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WUTMHY ENGdNEm sJPEOIFIGATION forming part of Letters Patent No. $84,179, dated March '7, 1905.

Application filed December 2, 1904. Serial No. 235,235.

To (11 whmn it WHY/y concern): Be it. known that I, Con PAUL RHoY, a citizen of the United States, residing at Stirling City, in the county of Butte and State of tlali- I jectedto the greatest friction may be readily renewed when worn or broken, all of the parts being. made lnterchangeable, so that the expense of repairs willbe reduced to a minimum. 4

A further objectof the invention is to simplify' and cheapen the arrangement of the packing employed at the periphery of the r'evoluble piston.

With these and other objects in View, as will more fully hereinafter appear, the invention consists in certain novel features of construction and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings. andparticularly pointed,

out in the appended claims, itbeingunderstood that various changes in the form, proportions, size, and minor details of the struc- 'ture may be made without departing from the spirit or sacrificing any of the advantages of the lnventlon.

In the accompanying drawings, Figure 1 is a longitudinal. sectional elevation of a rotary engine constructed in accordance with the-invention. Fig. 2 is a transverse sectional view of the same on the line-2 2 of Fig. 1. Fig. 3

is' a similar View on the line 3 3 of Fig. 1.

Fig. t is a detail perspective view of one oi" the removable buckets carried by the pistondrum. Fig. 5 is a similar wiew of one of the packing-strips.

Similar numerals of reference ard employed to indicate corresponding parts throughout the several figures oi the drawings. f

The cylinder-of the engine comprises a main 'ring 10, that is secured to or formed integral with a suitable base-plate, and suitable heads 11, to which are secured brackets 12 for the support oi the main shaft 13.

0n the shaft 13 is keyed or otherwise secured a cylindrical piston-drum 1 1, the periphery of which is provided with a. series of pockets 15 of a width less than that of the piston, the end walls of said pockets being disposed on lines that are approximately ra-. dial of the drum. Between each two pockets is a radially-projecting rib 16, that is recessed for the reception of a T-shaped packing-strip 17, said strip being ofawidth approximately equal to the width of the-pockets and held out in contact with'the inner vvall ot' the cylinder by the pressure of the steam, air, or other actuating fluid.

In each of the pockets arrangeda bucket 18, that corresponds in contour to the pocket, and said buckets are held outward in contact with the inner wall of th'e'cylinder by means of suitable springs 19, so that only the outer edges of said buckets and the packing-strips leading to that portion of the recess 16 immefrom either side 01' the rib in accordancewith the direction in which the piston-drum is rotated, butthe shank of the packing-strip servesl to prevent the direct passage of steam from bucketto bucket.

The engine is provided with two steam-inlet. ports 24: and two exhaust-ports 25, and the pipes connected thereto may be provided with controlling-valves ot any suitable character, so that steam will be introducedthrough one or other of the steam pipes ,and exhaust through one or other of the exhausbpipes, thus permitting the reversal of rotation of the engine at will.

The periphery of the piston is furtherpro; vided with a pair oi annular grooves 26, in which are annular packing-strips 27 to pre vent leakage of steam in the direction of the Width of the piston. Theinner faces of these port 20, that communicates with a port 21,

diately below the head of the packing-strip 17, and steam may enter through the ports packifigstrips ereiarranged lose te-lphesides" .shQWng-more clearly in r ofthe buckets, as Fig. :3. l

,Wich an'engine' conscrmled in nac prdance with-this invention bh'erevi's no wemcon the piston prope'r.-- and the buckets ahd peeking-1 snip Being? all: of the ,same size and in Ue'r- 'ehangeablef may "be Ieadily renewed: when 'w0rn.-

l .1; i'lhenombinetipn in a i'qteryengine; lifeeylindema 'shaffi, a'pislson-drum mounted on v the-shaft} and provided with a plurality fof'pe- 'rifpherel pockets spaced by interveningnediel ribs; said ribs being provided with: 1 packingstrip-freeei v1'ng;neeesses, packing -strips.' dis po sed within the recesses, said strips being of T shapezin eros's seeti'on, and ports leading from the; opposite ends 0f the pockets to-said recesses for the passage of a fluid under pres;

sure, the r'ec'l'ial web pf. thepackihg-sbrip.servri bed thefim en tion; wh timedise I A .ing to prevent communication between said ports. A

I .12. The eombination in a. i'etary engine, of acylinder, a piston arranged within the' cylin defendprovided with a plurality of periphezialpnek'elts, interchangeable buckets "mounted within-the pockets and provided with end "portsfdnthiajpassege of steam, means for fencing-the buckets outward into engeger'nen t;v fw ltll the inner wall of the cylinder, recessed ribs separating Lhe pockets and provided with ports in ralinernent with the end porla's of the buckets, and 1-'=shaped packing-strips disposed 'insaidJreeeSseS. r 1 ln.1jestim0ny thatl claim the foregoing as my own I have hereto efli'xed tnjizlsiigneture in 

